Hello all - I volunteer at a local childrens museum and about a month ago we installed an observation bee hive for display. Shortly after the Queen left the hive followed by many of the bees. We were told it was because the hive was too cold. It is a 2 panel hive ( approx 2ft wide by 3ft high ) that is indoors connected to the outside by a pvc tube. We put a lamp in a small area above the hive but now the bees all congergate at the top of the hive. The hive is displayed in a hollowed out section of a fabracated tree made from plaster and concrete. We have about 6 - 8 inches to work with on the sides, around the edges and on top.
My Question is does any have any suggestions on how to keep the hive warm ? Are there small heaters that can 'pump' warm air into the hive ? Heat lamps that will warm the hive but not melt the plexiglass observation front ? Any advice would be appreciated.